I connect my Arduino Nano and ESP8266 already. I set up my router IP forwarding correctly with these AT commands:
AT+RST
AT+CWJAP="user","pass"
AT+CIPMUX=1
AT+CIPSERVER=1,333
AT+CIFSR
+CIFSR:STAIP,"192.168.0.102" ----> set this IP in router forwarding clients with port 333
+CIFSR:STAMAC,"18:fe:34:d5:47:62" -----> also set this mac and ip for DHCP client list ( and turn off router firewall for this client)
After all this settings i check port status at http://www.canyouseeme.org/, and i get this message:
Success: I can see your service on 78.90.221.52 on port (333)
Your ISP is not blocking port 333
And also this message in arduino id serial:
0,CONNECT
0,CLOSED
But when i type my router IP and port 333 (http://78.90.221.52:333/), i don't receive any message in serial terminal and my Firefox browser say: Unable to connect.
So i will be very grateful for your help .